import type { RouteRecordRaw } from 'vue-router'
import { routerConfig } from '@/router/config'
import { registerNavigationGuard } from '@/router/guard'
import { createRouter } from 'vue-router'
import { flatMultiLevelRoutes } from './helper'

const Layouts = () => import('@/layouts/index.vue')

/**
 * @name 常驻路由
 * @description 除了 redirect/403/404/login 等隐藏页面，其他页面建议设置唯一的 Name 属性
 */
export const constantRoutes: RouteRecordRaw[] = [
  {
    path: '/redirect',
    component: Layouts,
    meta: {
      hidden: true
    },
    children: [
      {
        path: ':path(.*)',
        component: () => import('@/pages/redirect/index.vue')
      }
    ]
  },
  {
    path: '/403',
    component: () => import('@/pages/error/403.vue'),
    meta: {
      hidden: true
    }
  },
  {
    path: '/404',
    component: () => import('@/pages/error/404.vue'),
    meta: {
      hidden: true
    },
    alias: '/:pathMatch(.*)*'
  },
  {
    path: '/login',
    component: () => import('@/pages/login/index.vue'),
    meta: {
      hidden: true
    }
  },
  {
    path: '/',
    component: Layouts,
    redirect: '/dashboard',
    children: [
      {
        path: 'dashboard',
        component: () => import('@/pages/dashboard/index.vue'),
        name: 'Dashboard',
        meta: {
          title: '首页',
          // svgIcon: 'dashboard',
          affix: true
        }
      }
    ]
  },
  {
    path: '/demo',
    component: Layouts,
    redirect: '/demo/unocss',
    name: 'Demo',
    meta: {
      title: '示例集合',
      elIcon: 'DataBoard'
    },
    children: [
      {
        path: 'unocss',
        component: () => import('@/pages/demo/unocss/index.vue'),
        name: 'UnoCSS',
        meta: {
          title: 'UnoCSS'
        }
      },
      {
        path: 'element-plus',
        component: () => import('@/pages/demo/element-plus/index.vue'),
        name: 'ElementPlus',
        meta: {
          title: 'Element Plus',
          keepAlive: true
        }
      },
      {
        path: 'level2',
        component: () => import('@/pages/demo/level2/index.vue'),
        redirect: '/demo/level2/level3',
        name: 'Level2',
        meta: {
          title: '二级路由',
          alwaysShow: true
        },
        children: [
          {
            path: 'level3',
            component: () => import('@/pages/demo/level2/level3/index.vue'),
            name: 'Level3',
            meta: {
              title: '三级路由',
              keepAlive: true
            }
          }
        ]
      },
      {
        path: 'composable-demo',
        redirect: '/demo/composable-demo/use-fetch-select',
        name: 'ComposableDemo',
        meta: {
          title: '组合式函数'
        },
        children: [
          {
            path: 'use-fetch-select',
            component: () => import('@/pages/demo/composable-demo/use-fetch-select.vue'),
            name: 'UseFetchSelect',
            meta: {
              title: 'useFetchSelect'
            }
          },
          {
            path: 'use-fullscreen-loading',
            component: () => import('@/pages/demo/composable-demo/use-fullscreen-loading.vue'),
            name: 'UseFullscreenLoading',
            meta: {
              title: 'useFullscreenLoading'
            }
          },
          {
            path: 'use-watermark',
            component: () => import('@/pages/demo/composable-demo/use-watermark.vue'),
            name: 'UseWatermark',
            meta: {
              title: 'useWatermark'
            }
          }
        ]
      }
    ]
  }
]

/**
 * @name 动态路由
 * @description 用来放置有权限 (Roles 属性) 的路由
 * @description 必须带有唯一的 Name 属性
 */
export const dynamicRoutes: RouteRecordRaw[] = [
  {
    path: '/permission',
    component: Layouts,
    redirect: '/permission/page-level',
    name: 'Permission',
    meta: {
      title: '权限演示',
      elIcon: 'Lock',
      // 可以在根路由中设置角色
      roles: ['admin', 'editor'],
      alwaysShow: true
    },
    children: [
      {
        path: 'page-level',
        component: () => import('@/pages/demo/permission/page-level.vue'),
        name: 'PermissionPageLevel',
        meta: {
          title: '页面级',
          // 或者在子路由中设置角色
          roles: ['admin']
        }
      },
      {
        path: 'button-level',
        component: () => import('@/pages/demo/permission/button-level.vue'),
        name: 'PermissionButtonLevel',
        meta: {
          title: '按钮级',
          // 如果未设置角色，则表示：该页面不需要权限，但会继承根路由的角色
          roles: undefined
        }
      }
    ]
  }
]

/** 路由实例 */
export const router = createRouter({
  history: routerConfig.history,
  routes: routerConfig.thirdLevelRouteCache ? flatMultiLevelRoutes(constantRoutes) : constantRoutes
})

/** 重置路由 */
export function resetRouter() {
  try {
    // 注意：所有动态路由路由必须带有 Name 属性，否则可能会不能完全重置干净
    router.getRoutes().forEach((route) => {
      const { name, meta } = route
      if (name && meta.roles?.length) {
        router.hasRoute(name) && router.removeRoute(name)
      }
    })
  } catch {
    // 强制刷新浏览器也行，只是交互体验不是很好
    location.reload()
  }
}

// 注册路由导航守卫
registerNavigationGuard(router)
